
author
1827–1900
A bold Victorian biologist and popular writer, he became known for challenging parts of Darwin’s theory while still arguing that evolution was real. His work sat at the lively crossroads of science, philosophy, and religion.

by St. George Jackson Mivart
Born in London in 1827, St. George Jackson Mivart was an English biologist best known for his work in comparative anatomy and for writing about evolution. He studied at King's College London, was called to the bar at Lincoln's Inn, and later taught at St. Mary's Hospital Medical School. Over time he built a reputation as a skilled lecturer and a prolific author.
Mivart is most closely associated with debates around Darwinism in the 19th century. His book On the Genesis of Species argued that natural selection alone could not fully explain evolution, a position that made him an important critic of Charles Darwin while still placing him inside the broader evolutionary conversation. He also wrote on animals, ethics, and religion, reflecting his unusual mix of scientific and philosophical interests.
He converted to Roman Catholicism as a young man, and questions of faith remained central to much of his public life and writing. That mix of science and religion helped make him a distinctive and sometimes controversial figure in Victorian intellectual life. He died in 1900.